Primary eosinophilic gastroenteritis (PEG) is an uncommon disorder of unknown cause, characterized by abdominal symptoms of pain, vomiting, and diarrhea as the result of eosinophilic infiltration of the gastrointestinal tract.

Figure) The diagnosis of primary eosinophilic gastroenteritis (muscularis subtype) was made on the basis of clinical, laboratory, and histopathologic findings.

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